I have the following ring that I would like to donate. You can click on the link that will take you to a store that has the same ring and all of the ring details, I believe the one I have is a sz 7 starting bid $20.00, thanks:
http://pyramidcollection.com/itemdy00.asp?T1=P41705+6
This ring is very large, heavy and very pretty, I would say it probably goes from the base of your finger to just below the knuckle, the back is open so you may be able to adjust it to fit a size 7.5 but since the silver is so thick it would be pretty hard to adjust.